editor, C.A. Brebbia ; seminar sponsored by the International Society for Computational Methods in Engineering. editor, C. A. Brebbia ; seminar sponsored by the International Society for Computational Methods in Engineering. editors, G.A. Keramidas, C.A. Brebbia ; sponsored by the International Society for Computational Methods in Engineering. editor, R. R. Alfano ; sponsored by SPIE-the International Society for Optical Engineering. International Society for Computational Methods in Engineering. Mustafa A. El-Sayed ; sponsored by SPIE-The International Society for Optical Engineering. International Society for Computational Methods in Engineering Alvin D. Schnurr, chair/editor ; sponsored by SPIE-the International Society for Optical Engineering. Kevin M. Monahan, chair/editor ;sponsored by SPIE-The International Society for Optical Engineering. C.P. Grover, chair/editor ; sponsored by SPIE--the International Society for Optical Engineering.